Patent GB-191027503-A (GB)
Title: Improvements in or relating to Heel-attaching Machines.
Inventor: BOULT ALFRED JULIUS
IPC: A43D79/00
Filed: 1910-11-25
Granted: 1911-12-27
Abstract: 27,503. Boult, A. J., [United Shoe Machinery Co.]. Nov. 25. Heels, machines for. - A heeling-machine is arranged to give a heel a certain compression during the nailing-operation, and to give a different compression in the operation of attaching the top-lift, these compressions being the same in operating upon a number of heels irrespective of variations in the size and density of the heels. The boot C<2> is mounted on a last on an adjustable support H, which is connected to a lever B<3>, to the other end of which is attached a rod H<Î> provided at its lower end with a nut for a quick - threaded screw H'. The heel c', Fig. 6, is pressed upwards against the boot bottom by a die on a carrier n<1>, Fig. 1, which is moved upwards by the action of springs r<1> on flanges o<1> on the rods m<1> which s u p p o r t the carrier. The springs are compressed by the movement of cages h<1> connected to a cross-bar b<1> carried on a rod B, which is reciprocated by the straightening of a toggle C, D, from a shaft A<2>. As the heel presses against the boot, the boot moves upwards, the rod H<Î> on the other end of the lever B<3> moving downwards and causing the screw H<4> to rotate and to turn one set of members of a clutch situated in a box H<6> attached to the machine f r a m e. The clutch, Fig. 7, consists of a number of washers fitted on a rectangular block on the end of the screw H<4> and located between other washers D<3> with projections extending into the framing of the box. A washer D<8>, Fig. 9<a>, provided with arms 2, 3, is mounted at the top of the clutch, and is provided with recesses 4 which take pins 5, the upper ends of which enter recesses in adjustable screws 6 attached to the box. If the washer D<8> is moved to bring the pin vertical, the washers are tightly clamped together, and the screw H<4> is prevented from rotating. The washer D<8> is moved to operate the clutch by a lever 33 bearing against the arm 3 and operated by tappets 15, 16 on the shaft A<2>. These actuators are adjustable in a collar on the shaft. The collar is arranged to move through half a revolution for each revolution of the shaft, the one tappet causing the clutch to be operated to stop the upward movement of the boot when the heel is attached, and the other when the top-lift is attached. By adjusting these tappets to cause the clutch to be operated at different times relative to the movement of the toggle C, D, any desired compression may be obtained. The washer D<8> is returned to its normal position by a spring. The nails, which are fed from a nail-assorting mechanism as described in Specification 5405/02, pass to a foot-plate d provided with nail holes for any kind of nailing. The foot-plate is provided with a guideway to take the top plate f of a nail " mug " comprising a top and a bottom plate provided with nail-holes connected by tubes m formed of wire springs. The mug has nail-holes suitable for the work to be done. The operation of the nail assorting and delivery mechanism is controlled by a device similar to that described in Specification 14,724/02, [Class 89, Nails &c.]. After the nails have been fed through the mug, the loader carrier is swung round into position over the holes in a removable nail block aX, and the nails are delivered by the operation of a trip catch. The hammers e<1> are carried in a removable driver-plate mounted in the driver-bar b<l>. The back of the boot is held in a sheet-metal clamp, the sides of which may be closed in by adjusting pins i<2>. The clamp is rearwardly adjustable, and is mounted on a vertical slide f<3>.